When I checked just now I was surprised to find that this only spent 5 weeks at #1 in the UK. It seemed a lot longer at the time.
Also, it was banned for being ‘obscene’ by the BBC (obviously not by Channel 4) and so at the end of Top of the Pops every week, they would announce that it was still #1 and then cut to the credits.
I think what @anon33176345 was alluding to was that the were able to keep up the momentum of the record sales by releasing different remixes and 12"s including one with the BBC DJ Mike Read announcing he wasn’t going to play the track 'cos it was obscene.
